電路建構者用磁簧開關積木

Snapped right into my existing circuit builder setup without any wobble, and the reed switch triggers cleanly every time the magnet gets close. Nice to finally have a single block that handles this instead of rigging something myself.

Magnet near this block and the circuit clicks on instantly, which my kid figured out in about two minutes without any help. It drops right into the same grid as the other pieces, so no fiddling to get it seated.

Snapped this into my circuit builder setup and it clicked in flush with the other blocks, no wobble at all. The reed switch triggers cleanly when I wave a magnet past it, which made our little door-alarm project actually work on the first try. Solid single piece for the price.